Physics, 02.03.2020 20:44, lazyboy010406
While exploring an ancient Mayan tomb, you discover that the walls begin to move and are closing in on you. By exerting 400 N of force, you are able to keep a wall from coming closer. The work you are doing on the wall is .a. 400 J.
b. 3920 J.
c .unknown, because the mass of the wall is not given.
d. zero, because the wall is not moving.
Answers: 2
Physics, 22.06.2019 11:20, cjd1214812148
The ultracentrifuge is an important tool for separating and analyzing proteins. because of the enormous centripetal accelerations, the centrifuge must be carefully balanced, with each sample matched by a sample of identical mass on the opposite side. any difference in the masses of opposing samples creates a net force on the shaft of the rotor, potentially leading to a catastrophic failure of the apparatus. suppose a scientist makes a slight error in sample preparation and one sample has a mass 10 mg larger than the opposing sample. if the samples are 12 cm from the axis of the rotor and the ultracentrifuge spins at 70,000 rpm, what is the magnitude of the net force on the rotor due to the unbalanced samples? ( be thorough on your answer)
Answers: 3
Physics, 23.06.2019 03:30, ghari112345
Ineed with my physics homework i can’t find it on google
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What’s the ampacity of a no. 10 type tw copper wire in a raceway containing six wires and located in an area where the ambient temperature is 50°c
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While exploring an ancient Mayan tomb, you discover that the walls begin to move and are closing in...
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